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Cheap flights from Ireland to Belfast from €44

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Belfast departing on 29/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ireland to Belfast

Recent return flight deals from Ireland to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
Multiple Airlines Logo
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
€82Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
06:20 - 18:25
DUB
-
BFS
12h 05m
1 stop
Multiple Airlines Logo
05:55 - 19:00
BFS
-
DUB
13h 05m
1 stop
€83Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
06:30 - 12:15
DUB
-
BFS
5h 45m
1 stop
Multiple Airlines Logo
20:15 - 07:50
BFS
-
DUB
11h 35m
1 stop
€83Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
Multiple Airlines Logo
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
€84Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
Multiple Airlines Logo
05:55 - 15:35
BFS
-
ORK
9h 40m
1 stop
€84Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
Multiple Airlines Logo
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
€85Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
08:50 - 15:15
SNN
-
BFS
6h 25m
1 stop
Multiple Airlines Logo
07:30 - 11:50
BFS
-
SNN
4h 20m
1 stop
€86Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
06:05 - 10:00
DUB
-
BFS
3h 55m
1 stop
Multiple Airlines Logo
07:35 - 16:25
BFS
-
DUB
8h 50m
1 stop
€86Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Multiple Airlines Logo
13:00 - 22:20
DUB
-
BFS
9h 20m
1 stop
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
€87Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
€88Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep

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Aer Lingus flights from Ireland to Belfast

Our best Aer Lingus deals on Ireland to Belfast flight tickets
Aer Lingus
17 Aug
DUB07:50Dublin
13h 00m
1 stop
BHD20:50Belfast City
25 Aug
BHD15:40Belfast City
5h 15m
1 stop
DUB20:55Dublin
€176
Aer Lingus
21 Sept
DUB10:30Dublin
6h 05m
1 stop
BHD16:35Belfast City
29 Sept
BHD14:05Belfast City
5h 55m
1 stop
DUB20:00Dublin
€185
Aer Lingus
14 Sept
DUB06:50Dublin
5h 05m
1 stop
BHD11:55Belfast City
22 Sept
BHD09:50Belfast City
12h 50m
1 stop
DUB22:40Dublin
€212

British Airways flights from Ireland to Belfast

Our best British Airways deals on Ireland to Belfast flight tickets
British Airways
14 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
22 Sept
BHD20:25Belfast City
11h 15m
1 stop
DUB07:40Dublin
€193
British Airways
21 Sept
DUB15:15Dublin
17h 35m
1 stop
BHD08:50Belfast City
29 Sept
BHD13:45Belfast City
4h 55m
1 stop
DUB18:40Dublin
€202
British Airways
21 Sept
DUB15:15Dublin
17h 35m
1 stop
BHD08:50Belfast City
29 Sept
BHD13:45Belfast City
4h 55m
1 stop
DUB18:40Dublin
€203

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 28 July 2026.
Use the filters below to find and compare flights from Ireland to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 8/9

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 15/9

07:35-16:25

1 stop8h 50m

€82

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 21/9

06:20-18:25

1 stop12h 05m

Belfast Intl

Tue 29/9

05:55-19:00

1 stop13h 05m

€83

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 8/9

06:30-12:15

1 stop5h 45m

Belfast Intl

Tue 15/9

20:15-07:50

1 stop11h 35m

€83

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 8/9

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 15/9

07:35-16:25

1 stop8h 50m

€84

CorkBelfast

ORK - BFS

ORKBFS

Cork

Tue 8/9

22:25-07:05

1 stop8h 40m

Belfast Intl

Tue 15/9

05:55-15:35

1 stop9h 40m

€84

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 8/9

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 15/9

07:35-16:25

1 stop8h 50m

€85
Fastest return journey

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Wed 16/9

08:50-15:15

1 stop6h 25m

Belfast Intl

Wed 23/9

07:30-11:50

1 stop4h 20m

€86

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 8/9

06:05-10:00

1 stop3h 55m

Belfast Intl

Tue 15/9

07:35-16:25

1 stop8h 50m

€86

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 10/9

13:00-22:20

1 stop9h 20m

Belfast Intl

Thu 17/9

12:45-23:25

1 stop10h 40m

€87

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 9/9

06:30-15:15

1 stop8h 45m

Belfast Intl

Wed 16/9

07:30-21:30

1 stop14h 00m

€88

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Ireland to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Belfast?

The average flight duration from Ireland to Belfast depends on which airport you fly into and out of. Flying from Cork to Belfast Intl Airport is 4h on average, while flying from Milltown (Kerry) to Belfast Intl Airport is 7h 20m on average. Belfast Intl Airport is the most popular airport in Belfast.

Cheap Ireland to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Belfast

Fastest flight time

3h 30m

Direct flights

None
The fastest flight from Ireland to Belfast takes 3h 30m
There are no direct flights from Ireland to Belfast. There are no popular flight routes from Ireland to Belfast.
Search flight deals

Frequently asked questions about flying from Ireland to Belfast

  • When did momondo last update prices for flights from Ireland to Belfast?

    Prices for flights from Ireland to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Ireland to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Belfast . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ireland to Belfast?

Once all potential Ireland to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ireland to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ireland to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 19.6 km from Belfast
Belfast Intl Airport
Belfast City Airport